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Should I inherit from std::exception?
I've seen at least one reliable source (a C++ class I took) recommend that application-specific exception classes in C++ should inherit from std::exception . I'm not clear on the benefits of this approach.
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Getting the thread ID from a thread
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GetThreadId returns the ID of a given native thread. There are ways to make it work with managed threads, I'm sure, all you need to find is the thread handle and pass it to that function.
GetCurrentThreadId returns the ID of the current thread.
GetCurrentThreadId has been deprecated as of .NET ...
Ruby: Calling class method from instance
... answered Mar 27 '10 at 2:33
Mark RushakoffMark Rushakoff
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How to overwrite the previous print to stdout in python?
...te your final output.
Update
Now that Python 2 is EOL, a Python 3 answer makes more sense. For Python 3.5 and earlier:
for x in range(10):
print('{}\r'.format(x), end="")
print()
In Python 3.6 and later, f-strings read better:
for x in range(10):
print(f'{x}\r', end="")
print()
Of course, ...
How can I avoid running ActiveRecord callbacks?
I have some models that have after_save callbacks. Usually that's fine, but in some situations, like when creating development data, I want to save the models without having the callbacks run. Is there a simple way to do that? Something akin to...
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Should enums in C# have their own file? [closed]
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James CurranJames Curran
93.3k3434 gold badges169169 silver badges251251 bronze badges
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Regular Expressions and negating a whole character group [duplicate]
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Use negative lookahead:
^(?!.*ab).*$
UPDATE: In the comments below, I stated that this approach is slower than the one given in Peter's answer. I've run some tests since then, and found that it's really slightly faster. However, the rea...
How to align center the text in html table row?
.../td>
</tr>
</table>
http://jsfiddle.net/j2h3xo9k/
EDIT: The valign attribute is deprecated in HTML5 and should not be used.
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HTML: Include, or exclude, optional closing tags?
...end tags all would be immediately followed by their end tag so it would be kind of redundant to have to type <img src="blah" alt="blah"></img> every time.
I almost always use the optional tags (unless I have a very good reason not to) because it lends to more readable and updateable cod...
“The page you are requesting cannot be served because of the extension configuration.” error message
I'm getting this error message when trying to run my application. I don't know how to fix it:
19 Answers
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